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网页Watch this video to learn the basics of magnetism, how magnets interact with each other and with other materials, and why magnets are important for many applications.
Unit 10: Why are magnets magnetic? And why are other things not?
网页Quiz. Unit test. Direction of magnetic field due to a current-carrying circular loop. Why are magnets magnetic? And why are other things not?: Quiz 1. Magnetic Dip and Horizontal Component of Earth's field. Why are magnets magnetic?
Magnetic dip & horizontal component of Earth's field (video
网页Magnetic Dip and Horizontal Component of Earth's field. Why are magnets magnetic? And why are other things not?>.
Khan Academy
网页Let's test our understanding of the magnetic field and field lines due to a current passing through a solenoid.
Inverse Cube Relationship | Measuring magnetic fields - Khan …
网页Lesson 3: Measuring magnetic fields. Are 2 magnets stronger than 1? Measure the Earth's field! Earth's magnetic field (how to measure) Force over distance. Inverse cube law (deflection method) Inverse Cube Relationship. Inverse cube law (method of oscillation) Science > Physics archive >
Khan Academy
网页Math: Pre-K - 8th grade; Pre-K through grade 2 (Khan Kids) Early math review; 2nd grade; 3rd grade; 4th grade; 5th grade; 6th grade; 7th grade; 8th grade; Illustrative math 3rd grade
Force on a current-carrying conductor in a magnetic field (video ...
网页Let's explore the magnetic force on a current carrying conductor. We will discuss how the strength of the current and the field effects the magnitude and the direction of the force.
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网页Let's solve problems in calculating the force directions on move charges in magnetic fields using the left-hand rule.